package com.usian.user.controller;

/**
 * @Author:WGG
 * @Date 2023年01月05日 23:31
 */

import com.usian.user.service.UserInfoService;
import com.usian.yygh.common.result.Result;
import com.usian.yygh.vo.user.LoginVo;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import java.net.InetAddress;
import java.util.Map;


@Api(tags = "用户操作接口")
@RestController
@RequestMapping("/api/user")
public class UserInfoApiController {

    @Autowired
    private UserInfoService userInfoService;


    /**
     * 会员登录
     * @param loginVo
     * @param request
     * @return
     */
    @ApiOperation(value = "会员登录")
    @PostMapping("login")
    public Result login(@RequestBody LoginVo loginVo, HttpServletRequest request) {
        loginVo.setIp(IpUtil.getIpAddr(request));
        Map<String, Object> info = userInfoService.login(loginVo);
        return Result.ok(info);
    }

    /**
     * 工具类
     */
    public class IpUtil {
        private static final String UNKNOWN = "unknown";
        private static final String LOCALHOST = "127.0.0.1";
        private static final String SEPARATOR = ",";

        public static String getIpAddr(HttpServletRequest request) {
            System.out.println(request);
            String ipAddress;
            try {
                ipAddress = request.getHeader("x-forwarded-for");
                if (ipAddress == null || ipAddress.length() == 0 || UNKNOWN.equalsIgnoreCase(ipAddress)) {
                    ipAddress = request.getHeader("Proxy-Client-IP");
                }
                if (ipAddress == null || ipAddress.length() == 0 || UNKNOWN.equalsIgnoreCase(ipAddress)) {
                    ipAddress = request.getHeader("WL-Proxy-Client-IP");
                }
                if (ipAddress == null || ipAddress.length() == 0 || UNKNOWN.equalsIgnoreCase(ipAddress)) {
                    ipAddress = request.getRemoteAddr();
                    if (LOCALHOST.equals(ipAddress)) {
                        InetAddress inet = null;
                        try {
                            inet = InetAddress.getLocalHost();
                        } catch (UnknownHostException e) {
                            e.printStackTrace();
                        }
                        ipAddress = inet.getHostAddress();
                    }
                }
                // 对于通过多个代理的情况，第一个IP为客户端真实IP,多个IP按照','分割
                // "***.***.***.***".length()
                if (ipAddress != null && ipAddress.length() >15) {
                    if (ipAddress.indexOf(SEPARATOR) >0) {
                        ipAddress = ipAddress.substring(0, ipAddress.indexOf(","));
                    }
                }
            } catch (Exception e) {
                ipAddress = "";
            }
            return ipAddress;
        }
    }
}
